Can Tien see with his third eye?

Say he's sitting having tea in Shinhan bank in Korea. Can he read the newspaper with his third eye? Can he read the three zeroes and decimal point on his bank statement (he's broke. Chazou spent all their money on face paint)?
Did we ever see him undeniably, indisputedly, unmistakably, incontestably, or unequivocally use his third eye to see?
(gotta maintain my vocab somehow)

His third eye can look in different directions giving him a huge advantage over regular vision. It can definitely see.

I think he explicitly says his third eye gives him better vision in the 23rd Budokai.

He was saying his third eye gave him enhanced vision as early as his fight with Jackie Chun...

Is Tenshinhan a descendant of aliens like the Daizenshuu states?